Page 25 - B.Tech IT Curriculum and Syllabus R2017 - REC

Department of IT, REC

 Become proficient in magnetic and optical properties of materials and Nano-electronic
devices.

UNIT I ELECTRICAL PROPERTIES OF MATERIALS 9
Classical free electron theory - Expression for electrical conductivity – Thermal conductivity,
expression - Wiedemann-Franz law – Success and failures - electrons in metals – Particle in a three
dimensional box – degenerate states – Fermi- Dirac statistics – Density of energy states – Electron in
periodic potential – Energy bands in solids – tight binding approximation - Electron effective mass –
concept of hole.

UNIT II SEMICONDUCTOR PHYSICS 9
Intrinsic Semiconductors – Energy band diagram – direct and indirect band gap semiconductors –
Carrier concentration in intrinsic semiconductors – extrinsic semiconductors - Carrier concentration
in N-type and P-type semiconductors – Variation of carrier concentration with temperature – variation
of Fermi level with temperature and impurity concentration – Carrier transport in Semiconductor:
random motion, drift, mobility and diffusion – Hall effect and devices – Ohmic contacts – Schottky
diode.

UNIT III MAGNETIC PROPERTIES OF MATERIALS 9
Magnetic dipole moment – atomic magnetic moments- magnetic permeability and susceptibility -
Magnetic material classification: diamagnetism – paramagnetism – ferromagnetism –
antiferromagnetism – ferrimagnetism – Ferromagnetism: origin and exchange interaction- saturation
magnetization and Curie temperature – Domain Theory- M versus H behaviour – Hard and soft
magnetic materials – examples and uses-– Magnetic principle in computer data storage – Magnetic
hard disc (GMR sensor).

UNIT IV OPTICAL PROPERTIES OF MATERIALS 9
Classification of optical materials – carrier generation and recombination processes - Absorption
emission and scattering of light in metals, insulators and semiconductors (concepts only) - photo
current in a P-N diode – solar cell - LED – Organic LED – Laser diodes – Optical data storage
techniques.

UNIT V NANO DEVICES 9
Electron density in bulk material – Size dependence of Fermi energy – Quantum confinement –
Quantum structures – Density of states in quantum well, quantum wire and quantum dot structure -
Band gap of nanomaterials – Tunneling: single electron phenomena and single electron transistor –
Quantum dot laser. Conductivity of metallic nanowires – Ballistic transport – Quantum resistance and
conductance – Carbon nanotubes: Properties and applications.
TOTAL : 45 PERIODS
OUTCOMES:
On completion of the course, students will be able to
1. Apply conducting properties of metals and energy band structures.
2. Apply the basics of semiconductor physics in electronic devices.
3. Analyze the magnetic properties of materials for data storage devices.
4. Analyze the properties of optical materials for optoelectronics.
5. Use the basics of quantum behavior in nano electronic devices.
TEXT BOOKS:
1. Jasprit Singh, ―Semiconductor Devices: Basic Principles‖, Wiley 2012.
2. Kasap, S.O. ―Principles of Electronic Materials and Devices‖, McGraw-Hill Education, 2007.
3. Kittel, C. ―Introduction to Solid State Physics‖. Wiley, 2005.

REFERENCES
1. Garcia, N. & Damask, A. ―Physics for Computer Science Students‖. Springer Verlag, 2012.

Curriculum and Syllabus | B.Tech. Information Technology | R2017 Page 25